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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2005 by the Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup modifiers
*/
#include "BLI_math.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "BKE_library.h"
#include "BKE_library_query.h"
#include "BKE_mesh.h"
#include "BKE_mesh_mirror.h"
#include "BKE_modifier.h"
#include "BKE_deform.h"
#include "bmesh.h"
#include "bmesh_tools.h"
#include "MEM_guardedalloc.h"
#include "DEG_depsgraph_build.h"
#include "DEG_depsgraph_query.h"
#include "MOD_modifiertypes.h"
static void initData(ModifierData *md)
{
MirrorModifierData *mmd = (MirrorModifierData *)md;
mmd->flag |= (MOD_MIR_AXIS_X | MOD_MIR_VGROUP);
mmd->tolerance = 0.001;
mmd->mirror_ob = NULL;
}
static void foreachObjectLink(ModifierData *md, Object *ob, ObjectWalkFunc walk, void *userData)
{
MirrorModifierData *mmd = (MirrorModifierData *)md;
walk(userData, ob, &mmd->mirror_ob, IDWALK_CB_NOP);
}
static void updateDepsgraph(ModifierData *md, const ModifierUpdateDepsgraphContext *ctx)
{
MirrorModifierData *mmd = (MirrorModifierData *)md;
if (mmd->mirror_ob != NULL) {
DEG_add_object_relation(ctx->node, mmd->mirror_ob, DEG_OB_COMP_TRANSFORM, "Mirror Modifier");
DEG_add_modifier_to_transform_relation(ctx->node, "Mirror Modifier");
}
}
static Mesh *mirrorModifier__doMirror(MirrorModifierData *mmd,
const ModifierEvalContext *ctx,
Object *ob,
Mesh *mesh)
{
Mesh *result = mesh;
/* check which axes have been toggled and mirror accordingly */
if (mmd->flag & MOD_MIR_AXIS_X) {
result = BKE_mesh_mirror_apply_mirror_on_axis(mmd, ctx, ob, result, 0);
}
if (mmd->flag & MOD_MIR_AXIS_Y) {
Mesh *tmp = result;
result = BKE_mesh_mirror_apply_mirror_on_axis(mmd, ctx, ob, result, 1);
if (tmp != mesh) {
/* free intermediate results */
BKE_id_free(NULL, tmp);
}
}
if (mmd->flag & MOD_MIR_AXIS_Z) {
Mesh *tmp = result;
result = BKE_mesh_mirror_apply_mirror_on_axis(mmd, ctx, ob, result, 2);
if (tmp != mesh) {
/* free intermediate results */
BKE_id_free(NULL, tmp);
}
}
return result;
}
static Mesh *applyModifier(ModifierData *md, const ModifierEvalContext *ctx, Mesh *mesh)
{
Mesh *result;
MirrorModifierData *mmd = (MirrorModifierData *)md;
result = mirrorModifier__doMirror(mmd, ctx, ctx->object, mesh);
if (result != mesh) {
result->runtime.cd_dirty_vert |= CD_MASK_NORMAL;
}
return result;
}
ModifierTypeInfo modifierType_Mirror = {
/* name */ "Mirror",
/* structName */ "MirrorModifierData",
/* structSize */ sizeof(MirrorModifierData),
/* type */ eModifierTypeType_Constructive,
/* flags */ eModifierTypeFlag_AcceptsMesh | eModifierTypeFlag_SupportsMapping |
eModifierTypeFlag_SupportsEditmode | eModifierTypeFlag_EnableInEditmode |
eModifierTypeFlag_AcceptsCVs |
/* this is only the case when 'MOD_MIR_VGROUP' is used */
eModifierTypeFlag_UsesPreview,
/* copyData */ modifier_copyData_generic,
/* deformVerts */ NULL,
/* deformMatrices */ NULL,
/* deformVertsEM */ NULL,
/* deformMatricesEM */ NULL,
/* applyModifier */ applyModifier,
/* initData */ initData,
/* requiredDataMask */ NULL,
/* freeData */ NULL,
/* isDisabled */ NULL,
/* updateDepsgraph */ updateDepsgraph,
/* dependsOnTime */ NULL,
/* dependsOnNormals */ NULL,
/* foreachObjectLink */ foreachObjectLink,
/* foreachIDLink */ NULL,
/* foreachTexLink */ NULL,
/* freeRuntimeData */ NULL,
};
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